Elevation

Elevation represents land height, in meters, above mean sea level. Elevation is generated from ⅓ arc-second Digital Elevation Models (DEM), previously referred to as the National Elevation Dataset (NED). The ⅓ arc-second DEM is part of the USGS 3D Elevation Program (3DEP), which provides the best available public domain raster elevation data of the conterminous United States, Alaska, Hawaii, and insular areas in a seamless format. The 3DEP ⅓ arc-second DEMs are derived from diverse source data, processed to a common coordinate system and unit of vertical measure.

For LANDFIRE (LF), the ⅓ arc-second 3DEP DEM data were projected from Geographic to Albers Equal Area, resampled to 30m spatial resolution, and then clipped to the LF boundary.